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This was actually a QA problem — a set of design issues starting at the front of the process. All QC can do is identify problems after they have occurred. As
by gumby 3y ago
This was actually a QA problem — a set of design issues starting at the front of the process. All QC can do is identify problems after they have occurred.
As the saying goes, “you can’t test quality into a product.”
- legitster 3y agoI guess I am a bit confused. Someone was supposed to be checking the bolts before the plane left the facility and they didn't. That seems to be a QC process issue more than a QA issue. But that also seems like splitting hairs. The problem is not one of engineering design, to OP's post.
- djmips 3y agoHow do we know that it was just 'someone was supposed to be checking the bolts before the plane left the facility and they didn't'. Because I'm not sure it's actually been fully revealed where the problem was. And despite the production issues, I'm of the opinion that the door-plug design should have been fail safe like the other doors where just pressure prevents them from being opened during flight. And another thing, passing the buck to QA doesn't let engineering off the hook since QC in this setting is a part of the engineering!
- itishappy 3y agoI disagree somewhat. It should not be possible for a plane to leave the factory without completing all QC checks. People are fallible, so a robust process is critical, and designing/confirming a robust QC process is a QA responsibility.
- djmips 3y agoAnd these QC design people are engineers.
- legitster 3y agoSure, but "did the plane leave with all of the bolts it was supposed to" does not seem like a question that needs to be answered by someone with mechanical engineering degree. Let alone the responsibility of someone sitting in a cubicle in Everett.
- itishappy 3y agoAgreed, but "how do we design the process to ensure, structurally, we cannot kill our customers" starts to sound a bit more engineering-like, no?
- legitster 3y agoHonestly, no. Pinning management and oversight issue on designers is a bad idea and unfair CYA. If cars are leaving the factory without brakes on, you shouldn't start firing engineers for designing a car that's possible to build without brakes.